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RESLEEVING TOOL Filed May ll, 1950 3 Sheets-Sheet 3 LESTER 5 VEGORS STANLEY I-I. VEGOR` ORVILLE W. BOYNTON mrtg/4,

United States Patent O RESLEEVING TooL Stanley H. Vegors, Fort Wayne, Ind., and Orville W. Iowa Application May 11, 1950, Serial No. 161,274 6 Claims. (Cl. 29-252) This invention is a tool for use in removing and/or inserting sleeves in the cylinders of internal combustion engines, diesel engines and the like.

The present invention embodies certain new and useful improvements in the tool forming the subject matter of co-pending application, Serial No. 56,784, tiled by Henry Miller, October 27, 1948, and now abandoned and entitled Tool for Removing and Inserting Engine Cylinder Liners and for Broaching Engine Cylinders.

The primary object of the present invention is to iinprove generally upon the tool forming the subject matter of the above-mentioned application.

One of the more specific objects of the invention is to provide a portable tool that is more compact in structure and which may be used to greater advantage for removing and inserting the liner or sleeve of an engine cylinder quickly and effectively without injury to the sleeve than has heretofore been the case with tools of this general character, including the tool of the above identified application.

Another more specific object of the invention is to provide an improved valve and pump assembly as a part of the tool.

Still another specific object of the invention is to provide an improved contractable ring assembly for engageof an adapter and an abutment as hereinafter more fully explained.

Still another specific object of the invention is to provide a tool of the character mentioned composed of a minimum number of separable parts, each of which lends itself to mass production at low cost. Also in accordance with this invention the separable parts of the tool are s constructed and so complement one another as to permit ready assembly and disassembly.

The invention, together with its objects and advantages, will be best understood when the following detailed description is read with reference to the accompanying drawings wherein is illustrated what is presently considered a preferred embodiment of the invention, and in which:

Figure 1 is a side elevational view illustrating an application of the invention when usedfor removing an engine cylinder liner or sleeve;

Figure 2 is a view similar to Figure 1 but illustrating an application of the invention when used for inserting an engine cylinder liner or sleeve;

Figure 3 is a top plan view of the tool per se, and with the header assemblies Figure 4 is an enlarged vertical sectional view taken substantially on the line 4 4 of Figure 3, but with the adapter and adapter and abutment assembly, hereinafter more fully referred to, omitted;

Figure 5 is an enlarged side elevational view of the tool substantially as shown in Figure 4, but with an engine-cylinder sleeve orv Figures 6to 11, inclusive, are detail sectional views of Figures 1 and 2 removed;

liner being shown positioned on thegtool, theliner or sleeve being illustrated .in vertical.'

therefor in the 2,732,616 Patented Jan.v31, 1956 illustrating the various positions of the valve forming a salient part of the present invention; Figure 6 being a horizontal sectional view taken substantially on line 6 6 of Figure 4; Figure 7 is a vertical sectional view taken substantially on the line 7-7 of Figure 6, but with the valve core shown partly in elevation and partly in section; Figure 8 is a vertical section taken substantially on the line 8-8 of Figure 7; Figure 9 is a view similar to Figure 6 but with the valve core shown rotated to a position substantially ninety degrees with respect to the position of the valve core shown in Figure 6; Figure 10 is a vertical sectional view taken substantially on the line 10-10 of Figure 9 but with the valve core shown partly in elevation and partly in section; and Figure ll is a vertical sectional view taken substantially on the line 11 11 of Figure l0;

Figure l2 is a top plan View of an adapter and abutment ring assembly, with certain parts broken away to illustrate certain details thereof;

Figure 13 is a vertical sectional view taken substantially on the line 13-13 of Figure 12, and

Figure 14 is a vertical transverse sectional view taken substantially on the line 14-14 of Figure 13.

Referring now in detail to the drawings, it will be seen that the numeral 5 indicates a cylinder that is open at its opposite ends. A piston 6 has a working t Within equipped with a rod 7, the piston being disposed on the rod in any suitable manner intermediate the ends of the rod.

The piston 6 may be of any suitable construction and is provided with a suitable packing assembly 8.

The cylinder 5 at one end thereof, and which end may be termed the upper end, is adapted to be closed by, and secured to, a casting or plate-like member 9 forming part of a head assembly indicated generally'by the reference numeral 10. Screws or other suitable fastening elements 11 are employed for detachably securing the cylinder 5 to the casting 9 (see Figures 3 and 4).

The casting 9 0f head assembly 10 is provided with a suitable opening to accommodate the piston rod 7 above the piston 6, said portion of the rod working through a suitable packing assembly 12 with which the casting 9 is equipped. At its opposite or lower end the cylinder 5 is provided with a restricted bore 13 through which the at the underside of piston 6 (see Figure 4). It will be understood that while the packing assembly 8 of piston 6 and the packing assemblies 12 and 14 may be of any suitable construction and components, preferably each comprises neoprene rings because of their now well known qualities. y

The head assembly 10 also includes a casting. 15 that through the medium' pump casing or cylinder 17 has one end thereof externally screw-threaded, and at said end is screw-threadedly engaged with the casting 15 as shownl in Figures 4 and 5 imparting reciprocatory motion to the plunger 19. Hand lever 21 has pivotally connected to one end thereof, as

vide a valve chamber.27

Casting 15 of head assembly 10 is also formed to pro 29, that' extends upwardly through an opening provided' plate 25, and said stem is aforementioned s transversely boredto removably accommodate asuitable manipulating handle 30.

An oil sump 31 is welded or otherwise secured adjacent the bottom thereof and at itsI periphery to casting' 9 of head assembly 10 as at 32, and is in conduit connection with a pump chamber 33 through aligned conduits 34, 35. The sump 31 is also in conduit connection with the valve chamber 27 through the aforementioned conduits 34, 35 and a conduit 36. 1t will be noted that pump chamber 33 and conduit 35 are formed by counterboring casting 1'5, and conduit 36 is in the form of a groove in the bottom or underside of the mentioned casting (see Figures 4, 6, 7, 9 and l0).

Pump chamber 33 also hasv conduit connections with valve chamber 27 through the medium of a two-diameter bore formed in casting 15 and presenting a horizontal conduit 37. Valve chamber 27 has conduit connections with cylinder above and below piston 6. The conduit connection above the piston comprises a port 38 formed in casting 9 and aligned with a vertical conduit f 39 that in turn opens into a horizontal conduit 40 (conduits 39 and 40 being formed in casting 15) leading from valve chamber 27 in substantial alignment with the aforementioned conduit connection 37 (Figures 4, 6, 7, 9 and 10). The conduit connection between valve chamber 27 and cylinder 5 below piston 6 comprises a vertical passage 41 formed in the wall of cylinder 5 and opening into the cylinder adjacent the bottom of the latter through a port 42 (see Figure 4), and at the upper end of the cylinder aligns with a vertical port 43 formed in casting 9 and which serves to connect conduit 41 with an inclined conduit 44 formed in casting 15 and extending upwardly from the bottom of the casting and at its upper end merging into a' horizontal port 45 opening into valve chamber 27 at right angles to the aforementioned conduits 37 and 40 (see Figures 6, 7, 9 and 10).

Valve core 28 is provided with a horizontal through opening or passage 46, and two aligned ports 47, 48. Port 47 extends inwardly from the periphery of the valve core and at its inner end opens into passage 46. Port 48 extends inwardly from the periphery of the valve core, but at its inner end merges into a vertical passage 49 that leads through the valve core to valve chamber 27, opening into the latter at the bottom of the valve core (see Figures 4, and 6 to ll). In this connection it is to be noted that valve core 28 is provided with an axial or pilot extension 50 that serves to space the lower end of the valve core upwardly from casting 9 to permit ow of oil or other actuating fluid through the valve chamber 27 between conduit 36 formed in the bottom surface of casting as previously described and valve core port 48 and passage 49 just referred to (Figures Tand ll).

Referring now to Figures 4, 9, l0 and 1l, it will be seen that with the valve core 28 in the position shown in these figures, continuous operation of the pump, i. e., `reciprocatory movement of pump plunger 19 in response to rocking movement of lever 21, will cause oil or other actuating lluid from the sump 31 to flow through conduits 34, 35 to chamber 33 from where the iluid, under pressure, passes through conduit 37, valve core passage 46, conduit 40 and downwardly through conduit 39 into cylinder 5A through` port 38 abovepiston 6. At the same time oil in cylinder 5 below piston 6 is displayed from beneath the piston, passing from cylinder S through port 42 and upwardly through conduit 41 to pass therefrom through port 43, conduits 44, 45, and valve core passages 43, 49 into valve chamber 27 and from that chamber through passages 36, 35 to pump chamber 33 to be, by the pump, returned under pressure to cylinder 5' above the piston to thereby' cause movement of the cylinder relative to piston 6 in anlupf ward direction and from substantiallyV the positiorrshown in Figures l, 4 and 5 to substantially the position shown. in Figure 2.

Now referring to Figures 6, 7 and S, it will be seen'that' .the valve core 28 has been rotated counter-clockwise ninety degrees from the position of Figures 4, 9, l0 and ll. With the valve core in the position of Figures 6 to 8, continuous operation of the pump will cause the oil or other actuating fluid to pass under pressure from pump chamber 33 through conduit 37, valve core ports 47, 46, port 45 downwardly through conduit 44, port 43 and conduit 41 to enter cylinder 5 through port 42 below piston 6. At the same time oil is displaced from above piston 6, the displaced oil passing from the cylinder through port 38, conduits 39, 40, valve core ports 48, 49 into valve chamber 27 below the valve core 28 and from the valve chamber return to the pump chamber 33 through conduits 36, 35 to be returned under pressure by the pump to the cylinder 5 beneath piston 6 along with such of the oil as may be drawn from sump 3i to thereby cause movement of cylinder 5 relative to piston 6 in a downward direction and from substantially the position shown in Figure 2 to substantially the position shown in Figures l, 4 and 5.

The structure and operation of the invention thus far described constitutes, as is believed to be apparent, a reversible hydraulic ram which may be used for numerous purposes but which is designed primarily for use in removing and inserting cylinder liners or sleeves in a manner now to be described in detail. It may be also here stated that while reference has been made to the cylinder 5 as being movable relative to the piston 6, the construction, combination and arrangement of parts readily lend themselves to such conditions of use as may make preferable or require movement of the piston relative to the cylinder.

The present invention also contemplates an improved tubular adapter 51 and an improved adapter and abut.

ment assembly 52, the external diameters of which are v respectively determined by the internal diameter of the sleeve 53 (Figure 5) to be removed or inserted.

Different size cylinders require differentv size sleeves; hence a series of adapters 51 and combination adapter and abutment assembly 52, respectively, are usually provided.

Adapter 51 is removably sleeved on the upper end of cylinder 5 and is in the form of a cylindrical collar having an upper portion of one diameter and a lower portion of :a second or less diameter, the diameter of the lower portion of the adapter being determined by the internal diameter of the sleeve 53. At the junction of the two diameters thereof adapter 51 is provided with a peripheral flange or shoulder 54 to engage the end of the liner or sleeve 53 to be inserted into the engine cylinder or to be withdrawn therefrom.

The aforementioned combined adapter and abutment :assembly 52 (Figure 5) is illustrated in greater detail in Figures 12 to 14, inclusive. With reference to those mentioned figures it will be seen that the assembly 52 comprises a body portion composed of a pair of superimposed plates 55, 56 that are detachably secured in assembled relationship through the medium of screws or other suitable fastening elements 57. The plates are centrally apertured as at 58, 58 to accommodate the reduced end portion 59 of cylinder 5 portion 59 the assembly 52 is detachably secured through the medium of a retaining nut 60 that threadsy onto the end 59 ofy cylinder 5 as at 61 and co-acts with a shoulder 62 provided on the cylinder 5 for detachably securing the assembly 52 in operative position on the cylinder 5 (Figures 4 and 5). Body plate 55 of the assembly 52 is hollowed out or otherwise formed to provide parallel anged portions, 63, 63 that providein cooperation with plate 56,Y opposed slots 64 at diametrically opposite edges of the assembly through which work' abutment segments 65. Abutment segments 65, 65 are normally' urged outwardly or to a projected postionthrough the medium of coil springs 66, 66, the ends of which are and onto which end 65 are medium of pins 68 that extend upwardly from the plate 56 into the space between the plates and are accommodated by circul-ar openings, slots or the like 69 provided in the abutment segments 65 (see Figure 12).

When it is desired to secure the abutment segments 65 either in retracted position, or extended position, set into one of the flanges 63 are, with the use of a suitable wrench or other tool,

now to be described, that is more practical and efficient than lany heretofore proposed or used. This header assembly comprises, generally, a pair of duplicate standards 71, 71,

the tool proceeds.

When the tool is used for removing an old engine cylinder sleeve or liner the tool is suspended over the appropriate cylinder of the engine block 75. The header assembly just described is used for so suspending the tool, and in the manner shown in Figure 1 wherein it will be seen that the standards 71 of the header assembly will be placed on the block 74 at opposite sides of the engine cylinder and the header bar 73 supported in elevated position by the standards 71, bar 73 being trained through the eyes 72 of the standards 71 and the loop nut 74, which latter, in this instance, is screw threaded onto the upper the upper end of the sleeve. At that point abutment segments 65 will then be projected outwardly under the influence of springs 66 to engage the lower or bottom edge of sleeve 53. By proper manipulation of pump handle or lever 21, with the parts now in position as shown in Figure l, and with the Valve core 28 in the position shown in Figures 4, 9, 10 and 11, it will be apparent that the oil or other actuating lluid will be pumped from the sump 31 and from the cylinder 5 below the piston 6 to the cylinder 5 above the piston, causing cylinder together with the sleeve 53 thereon to move upwardly relative to piston 6 and from substantially the position shown in Figure 1 to substantially the position shown in Figure 2 until the cylinder 5 clears the engine block 75, at which time sleeve 53 is completely removed from the engine cylinder and may then be removed from about the cylinder 5 subsequent to contracting abutment segments 65.

When the device is used for inserting a new sleeve in an engine cylinder, the sleeve 53 to be inserted in the engine cylinder is slipped over adapter and abutment assembly 52 and adapter 51, the abutment segments 65 in such circumstances of use being secured in retracted position but released to abut the sleeve on the under edge after the same has been seated on the upper adapter. Cylinder 5 with the new sleeve 53 thereon is set in the top of engine cylinder in substantially the position shown in Figure 2 and with the piston 6 at the lower end of cylinder 5. The tool is secured in operative position by passing header bar 73 through the loop nut 74 which is now threaded on the lower threaded end of piston rod 77. By this arrangement the piston 6 is held against movement while the cylinder 5 would move downwardly on the piston 6 for inserting the sleeve 53 into the engine cylinder. This is accomplished by proper manipulation of pump handle or lever 21 to operate the pump. With the pump in operation and the valve core 28 in the position shown in Figures 6, 7 and 8, the oil or actuating fluid, as previously described, will be pumped from the understood that such has been sump 31 and from the cylinder 5 above piston 6 to the cylinder 5 beneath the piston, causing cylinder 5 to move downwardly relative to piston 6 into the engine cylinder. When the sleeve 53 is thus seated, it is only then necessary to move valve core 28 from the position shown in Figures 6, 7 and 8 to the position shown in Figures V4, 9, 10 and 1l. cylinder 5 upwardly relative sleeve until cylinder 5 clears the engine cylinder. The parts are then in a position whereby the just described cycle of operation may be repeated for inserting a new downward and return stroke.

While the invention has been described in detail in its presently preferred embodiment, it will of course be done for purposes of illustration only and not by way of limitation, and therefore only such limitations are to be imposed thereon as may reasonably come within the scope of the appended claims.-

What we claim is:

to lnsert the sleeve therein or withdrawn from the block to remove the sleeve therefrom.

2. A tool for removing or inserting block comprising a head,

cylinder in abutting relation to the head, panion adapter removably secured to the cylinder at the 3. A tool for removing or inserting sleeves in a cylinder block comprising a head, a cylinder depending from the underside of the head, a piston positioned in the cylremote end. inder, a piston rod carried by the piston and projecting through opposite ends of the cylinder to be selectively terminally anchored, means for admitting a mobile fluid selectively to opposite ends of the cylinder to elect bodily movement of the same toward the anchored end of the piston rod, an annular stepped sleeve adapter mounted in abutting relation to the head, and a This of coure causes the oil to force. to piston '6 and the seated movement of the saine toward thel anchored end of the piston rod, arrannular stepped sleeve adapter mounted on the cylinder in abutting relation to the head, and a companion adapter removably secured to the cylinder at the remote end, the latter adapter being provided with yieldingly mounted abutment segments, and means for locking the segments in either retracted or extended position.

5. A tool for removing or inserting sleeves in a cylinder block comprising a head, a cylinder depending from the underside of the head, a piston positioned in the cylinder, a piston rod carried by the piston and projecting through opposite ends of the cylinder to be selectively terminally anchored, means for admitting a mobile iluid selectively to opposite ends of the cylinder to effect bodily movement of the same toward the anchored end of the piston rod, an annular stepped adapter mounted on the cylinder in abutting relation to the head, and a companion adapter removably secured to the cylinder at the remote end, the companion adapter being provided with abutment segments diametrically disposed on opposite sides of said adapter, springs compressed between said segments to yieldingly impel them outwardly, and set-screws mounted in said adapter to be adjusted to bear upon said segments to hold them either in retracted or extended position.

6. A tool for removing or inserting sleeves in a cylinder block comprising a head, a cylinder depending from the underside of the head, a piston positioned in the cylindex', a piston rod carried by the piston and projecting 3 through opposite ends of the cylinder to be selectively terminallyanchored, means for admitting al mobile fluid selectively to opposite ends of the cylinder to effect bodily movement of the same toward the anchored end of the piston rod, an annular stepped sleeve adapter mounted,

on the. cylinder in abutting relation to the head, and a companion adapter removably secured to the cylinder at the' remote end, the latter adapter being provided with yieldingly mounted abutment segments, and means for locking the segments in either retracted or extended position, the said segments on the undersides being bevelled.

References Cited in the le of this patent UNITED STATES PATENTS 1,705,789 Steirly Mar. 19, 1929 1,776,776 Blackmarr Sept. 30, 1930 1,861,304 Etheridge May 31, 1932 1,879,335 Kulp et al Sept. 27, 1932 2,085,529 Heimbach et al. June 29, 1937 2,252,036 Rummer Aug. 12, 1941 2,421,276 Lotz May 27, 1947 2,421,324 Graham May 27, 1947 2,472,477 Harrington et al June 7, 1949 2,476,238 Bullard July l2, 1949 2,509,305 Landis May 30, 1950 2,547,345 Skilling Apr. 3, 1951 Fletcher Sept. 25, 1951 

